Problem 1

Given information

Mass of Block:-  

Mass of water:-  

Mass of container:-  

Sides of solid aluminum cube:-  

Step-by-step explanation

The water exerts an upward buoyant force on the block when it is submerged in the water, equivalent to the weight of the water displaced. The block then exerts an equal force on the water, according to Newton's third law. The two items will be balanced when the forces on both sides of the board are equal because they are symmetrically placed around the pivot.